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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [torture/] [pta-ptrarith-3.c] - Blame information for rev 826

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Line No. Rev Author Line
1 298 jeremybenn
/* { dg-do run } */
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/* { dg-options "-fdump-tree-alias" } */
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/* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
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extern void abort (void);
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struct X {
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  int *p;
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  int *q;
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  int *r;
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};
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int __attribute__((noinline))
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foo(int i, int j, int k, int off)
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{
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  struct X x;
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  int **p, *q;
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  x.p = &i;
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  x.q = &j;
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  x.r = &k;
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  p = &x.q;
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  p += off;
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  /* *p points to { i, j, k } */
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  q = *p;
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  return *q;
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}
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int main()
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{
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  if (foo(1, 2, 3, -1) != 1)
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    abort ();
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  if (foo(1, 2, 3, 0) != 2)
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    abort ();
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  if (foo(1, 2, 3, 1) != 3)
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    abort ();
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  return 0;
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}
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/* { dg-final { scan-tree-dump "q_., points-to vars: { i j k }" "alias" } } */
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/* { dg-final { cleanup-tree-dump "alias" } } */

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